地球的力量 第2集 大氣(25)加快全球變暖

In a few places, Like along riverbanks and cliffs.

在某些地方，比如河畔和懸崖旁

where the land slips away it exposes this, thepermafrost.

把雪掃開，就能發(fā)現它，永久凍土

It's nice to get my hands on it.

把手放在上面感覺很棒

If s just soil stuffed full of plants, stuffed full of carbon

就是泥土充滿植物，充滿碳

and frozen in ice.

以及被雪凍住

And although it might not look very interesting,

雖然看起來不是很有趣

this stuff is really important for our atmosphere.

這種材料對我們的大氣層很重要

That's because sealed in the permafrost is methane.

因為這些被封住的永久凍土

The danger is if the permafrost was to melt as a result of global warming,

如果凍土因為全球變暖而融化

it could release methane on a massive scale.

釋放出大量甲烷會導致危險

This would dramatically accelerate global warming.

會顯著加快全球變暖

Worryingly, here in Siberia,

讓人很擔憂，在西伯利亞

there are signs the permafrost is already starting to melt.

永久凍土開始融化的征兆開始顯現

Temperatures are rising faster here than anywhere else on the planet.

在此地的溫度上升速度比全球任意地方要快

Although you'd never know it.

盡管你之前從未見過